EP1175086A1 - Netzwerkspeichereinheit mit einem Demultiplexer - Google Patents

Netzwerkspeichereinheit mit einem Demultiplexer Download PDF

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Publication number
EP1175086A1
EP1175086A1 EP00115765A EP00115765A EP1175086A1 EP 1175086 A1 EP1175086 A1 EP 1175086A1 EP 00115765 A EP00115765 A EP 00115765A EP 00115765 A EP00115765 A EP 00115765A EP 1175086 A1 EP1175086 A1 EP 1175086A1
Authority
EP
European Patent Office
Prior art keywords
transport stream
storage device
network storage
network
partial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00115765A
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English (en)
French (fr)
Inventor
Andreas Advanced Techn. Center Stuttgart Schwager
Gerd Advanced Tech. Center Stuttgart Spalink
Paul Advanced Technol. Center Stuttgart Szucs
Peter Advanced Technol. Center Stuttgart Buchner
Scott Advanced Technol. Center Stuttgart Smyers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Deutschland GmbH
Sony Electronics Inc
Original Assignee
Sony International Europe GmbH
Sony Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony International Europe GmbH, Sony Electronics Inc filed Critical Sony International Europe GmbH
Priority to EP00115765A priority Critical patent/EP1175086A1/de
Priority to JP2001222022A priority patent/JP2002125179A/ja
Publication of EP1175086A1 publication Critical patent/EP1175086A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4344—Remultiplexing of multiplex streams, e.g. by modifying time stamps or remapping the packet identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394

Definitions

  • the present invention concerns a network storage device, in particular a network storage device for storing a partial transport stream, e. g. to enable time shift applications, and to a method to store a partial transport stream on a network storage device.
  • DE 198 44 635 A1 describes an external hard disk as a video recording device connected to an IEEE 1394 bus system. Data is transmitted to said hard disk in an isochronous channel and the storage of data and the access to stored data is controlled through a TV set. Different possibilities to store and view at the same time are possible, i. e. to store a program while watching it simultaneously, to store a program and watch a different program, and to store a program and begin watching the stored program while the storage is not finished, i.e. to watch a program time shifted.
  • WO 98/59498 A1 describes a set top box for an IEEE 1394 serial bus network which divides a transport stream into several partial transport streams which are respectively distributed to different devices via a respective isochronous channel.
  • audio/video streams are transmitted and stored within an IEEE 1394 network in an MPEG compressed format in order to reduce the amount of bandwidth and storage space required for a stream of data.
  • an easy way to provide a time shifting application is to connect an external hard disk drive to the IEEE 1394 serial bus.
  • a live stream can then be sent to and recorded on the hard disk drive and the recorded stream can be played back simultaneously from the hard disk drive and be decoded and displayed.
  • a transport stream de-multiplexer is required within the controlling device, i.e. the TV set, to decode program stream information (PSI) and service information (SI). This information must be used to assemble the correct stream to be recorded.
  • PSI program stream information
  • SI service information
  • a second de-multiplexer is required within the TV set to decode the program stream information and service information from the retrieved ecorded stream to extract the video and/or audio streams which should be supplied to a user.
  • a network set top box can be used either as a Network Tuner using its tuner, de-multiplexer, PID parser and IEEE 1394 interface, or as a display unit using its IEEE 1394 interface, de-multiplexer and decoder. Since the de-multiplexer is needed for both applications either the Network Tuner or the display unit can be in operation. Since basically both of these applications are needed for a Time Shift service, set top boxes with two de-multiplexers are provided. The first de-multiplexer is used to generate the partial transport stream to be recorded on the hard disk drive and the second de-multiplexer is used to supply the correct video and audio streams retrieved from the hard disk drive to the corresponding output devices.
  • a network storage device e. g. for enabling a time shift application, which allows to use today's hardware, i. e. set top boxes with one de-multiplexer.
  • a network storage device comprises a partial transport stream generator to generate a partial transport stream from a received transport stream, and a data storeage means to store said partial transport stream.
  • the method according to the present invention to store a partial transport stream on such a network storage device comprises the following steps within said network storage device: Receiving a transport stream transmitted from a network device, generating said partial transport stream from the received transport stream on basis of a content information indicating which content of the received transport stream should be stored, and supplying said generated partial transport stream to a data storage means within said network storage device.
  • said partial transport stream generator includes the functionality to perform package filter and replacement operations.
  • said partial transport stream generator comprises a fully functional transport stream de-multiplexer which is able to generate said partial transport stream on basis of the wanted content thereof.
  • said transport stream de-multiplexer might additionally comprise a section filter.
  • the partial transport stream generator is able to generate correct partial transport streams as it is e. g. described in the above mentioned EP 0 917 355 A1 which contents are herewith incorporated into this specification.
  • the partial transport stream generator includes a fully functional transport stream de-multiplexer only identifiers of parts of the transport stream which should be recorded have to be indicated and a correct partial transport stream, i.e. IEEE 1394 compliant partial transport stream, is generated.
  • the partial transport stream generator includes only the functionality to perform package filter and replacement operations, modified and newly generated information tables to generate a correct partial transport stream have to be received and appropriately inserted to generated the partial transport stream.
  • said transport stream generator might receive information about the content of said partial transport stream to be generated via packets of the received transport stream or via at least one asynchronous command comprising said information which is received by a controller within the network storage device and supplied to said transport stream generator.
  • said data storage means is able to simultaneously record said partial transport stream and reproduce said partial transport stream at the same time or time shifted and/or at least one other recorded partial transport stream.
  • said data storage means is realized by a hard disk drive.
  • other storage means which allow a fast enough access for writing and reading might also be used.
  • said network storage device according to the present invention is adapted to the IEEE 1394 standard.
  • the method according to the present invention preferably comprises additionally the following steps: Deriving a live broadcast service information of the received transport stream within the network storage device, transmitting said live broadcast service information from said network storage device to said network device and transmitting said content information which is determined on basis of said live broadcast service information from said network device to said network storage device.
  • This preferred embodiment according to the present invention enables a control of the network storage device e. g. through an existing set top box or display device.
  • the network storage device which might comprise a relatively noisy hard disk drive can be connected to the network at an arbitrary location independently from any considerations in respect to a direct control, e. g. via a remote control working with infra-red light or any other wired (POF) or wireless connection (RF).
  • POF wired
  • RF wireless connection
  • said content information might be transmitted via packets inserted into the received transport stream.
  • the network device transmitting said transport stream to said network storage device determines predetermined tables to be valid for the partial transport stream to be recorded and inserts them as one or more packets into the transport stream.
  • the network strorage device according to the present invention then generates the valid partial transport stream based on this information by replacing and/or inserting certain information tables and suppressing unwanted contents of the received transport stream and supplies it to the data storage means.
  • said network storage device receives said content information via at least one asynchronous command.
  • the whole generation of the partial transport stream to be recorded is performed within the network storage device according to the present invention.
  • the network device supplying the transport stream only needs to secure that the transmitted transport stream complies to the used network standard.
  • Fig. 1 shows a set top box 2 which is connected to an IEEE 1394 network 3 to which a network storage device 1 according to the present invention is also connected
  • the set top box 2 comprises a tuner 6, an IEEE 1394 interface 7 providing IEEE 1394 access, a packet identifier (PID) parser function and a packet insert function, a first de-multiplexer 8 which also has a decoder function, and a host CPU 9.
  • PID packet identifier
  • the set top box 2 comprises a first unidirectional connection 14 for the Transport Stream (TS) from the tuner 6 to the IEEE 1394 interface 7, a second unidirectional connection 15 for the Partial TS (PTS), if the time shift is in operation, from the IEEE 1394 interface 7 to the first de-multiplexer 8, a third unidirectional connection 16 from first de-multiplexer 8 to the host CPU 9 for the Service Information derived out of the PTS, and a first bidirectional connection 17 for asynchronous commands and controlling 1394 Access, PID Parser and Packet Insert from the IEEE 1394 interface 7 to the host CPU 9.
  • the set top box 2 is generally constructed like a set top box according to the prior art. Additional connections disclosed above and/or functionality which will be discussed below is generally available with a new software or a software upgrade due to the construction of today's set top boxes.
  • the network storage device 1 comprises a second de-multiplexer 4 and a data storage 5. Further, the network storage device 1 comprises a fourth unidirectional connection 10 for the TS from the IEEE 1394 network to the second de-multiplexer 4, a fifth unidirectional connection 11 for the asynchronous commands from the second de-multiplexer 4 to the IEEE 1394 network, a sixth unidirectional connection 12 for the PTS to be stored from the second de-multiplexer 4 to the data storage 5, and an seventh unidirectional connection 13 for the play back PTS from the data storage 5 to the IEEE 1394 network 3.
  • the fourth and fifth unidirectional connections 10 and 11 could be realized as a second bidirectional connection.
  • the tuner 6 of the set top box 2 forwards a received transport stream TS to the IEEE 1394 interface 7 via the first unidirectional connection 14 and the PID parser and the packet insert functions within the IEEE 1394 interface 7 build a digital video broadcast (DVB) compliant partial transport stream which gets sent over the IEEE 1394 network 3 to the network storage device 1.
  • DVD digital video broadcast
  • the second de-multiplexer 4 inside the network storage device 1 receives the transport stream TS via the fourth unidirectional connection 10 and derives the live broadcasted DVB information out of the transport stream to send it via the fifth unidirectional connection 11 as an asynchronous IEEE 1394 command to the host CPU 9 of the set top box 2.
  • the host CPU 9 of the set top box receives the live service information via the IEEE 1394 network 3, the IEEE 1394 interface 7 and the first bidirectional connection 17.
  • the host CPU 9 of the set top box 2 allows an access to the transmitted live service information, i.e. actual service information of the transport stream, to allow the selection of a partial transport stream which shall be recorded on the hard disk 1, e. g. according to the wants of a user.
  • the transmitted live service information i.e. actual service information of the transport stream
  • the necessary information to generate the partial transport stream PTS within the network storage device 1 according to the present invention may then be transmitted from the host CPU 9 to the second de-multiplexer 4 within the network storage device 1 either via packets inserted into the transport stream TS which are generated by the host CPU 9, sent to the IEEE 1394 interface 7 via the first bidirectional connection 17 and inserted into the transport stream TS by the packet inserted function within the IEEE 1394 network interface 7 in the set top box 2 or in a similar manner via asynchronous commands transmitted additionally to and independently from the transport stream TS to a controller within the network storage device 1 which is not shown in Fig. 1.
  • the second de-multiplexer 4 within the network storage device 1 Based on this information the second de-multiplexer 4 within the network storage device 1 generates the partial transport stream PTS with the wanted content and supplies it to the data storage 5 via the sixth unidirectional connection 12.
  • the recorded partial transport stream can be played back e.g. after a time delay from the data storage 5 via the seventh unidirectional connection 13, the IEEE 1394 network 3, the IEEE 1394 interface 7 and the first de-multiplexer 8 of the set top box 2.
  • the host CPU of the set top box 2 receives the time shifted service information extracted from the received partial transport stream PTS which is time shifted played back from the data storage 5 and was created before recording by the second de-multiplexer 4.
  • the second de-multiplexer 4 was controlled to do this from the set top box 2, e.g. by user operation.
  • Fig. 1 shows not all components required within the network storage device 1 according to the present invention, the set top box 2 and the IEEE 1394 network 3, but only the components necessary to carry out the invention. Of course, additional components necessary to comply with the IEEE 1394 standard have to be additionally provided although not shown, e.g. a second IEEE 1394 interface within the network storage device 1.
  • the following table 1 shows the modification of the received transport stream by the second de-multiplexer 4 to generate a partial transport stream with wanted content to be recorded within the data storage 5 in case the second de-multiplexer 4 within the network storage device 1 can only do simple package filter and replacement operations based on the packet identifier (PID).
  • the second de-multiplexer 4 within the network storage device 1 has to receive the service information table (SIT) from the set top box 2 which can be generated within the host CPU 9 to be able to generate the wanted partial transport stream.
  • SIT service information table
  • PTS program allocation table
  • PMT program map table
  • the set top box 2 only determines the necessary information and modifications for SIT, PAT and PMT on basis of Conditional Access Table (CAT), Service Description Table (SDT), Event Information Table (EIT), PMT and PAT obtained from the transport stream TS by the second de-multiplexer 4 within the network storage device 1 so that the first de-multiplexer 8 within the set top box 2 is not used at all for the generation of the partial transport stream PTS.
  • TS sent from set top box 2 over IEEE 1394 network 3 to network storage device 1 Asynchronous information between set top box 2 and network storage device 1 second de-multiplexer 4 in network storage device 1 storing DVB compliant partial TS on data storage 5 PAT Send original Send original PAT back to set top box 2.
  • the stored PAT shall contain only associations to the desired program for recording.
  • PMT Send original Send original PMT back to set top box 2. Receive modified PMT from set top box 2.
  • the new PMT shall contain only PIDs to the desired services for recording.
  • Replace SDT, EIT, CAT by SIT Video, Audio, Data of desired program(s) Send original Store Video, Audio, Data of non desired program(s) Remove
  • the removing function within the set top box 2 is performed by the PID parser functionality of the IEEE 1394 interface 7. Therefore, to generate the TS sent from the set top box 2 over IEEE 1394 network 3 to the network storage device 1 the first de-multiplexer 8 within the set top box 2 is not used.
  • Table 2 shows the operations necessary to generate the correct partial transport stream in case the network storage device 1 contains a fully functional second de-multiplexer 4 including a section filter in which case the only information that needs to be passed with asynchronous commands from the set top box 2 to the network storage device 1 is the seleced service identifier's.
  • the modified PAT and PMT as well as the SIT necessary to generate a valid partial transport stream will be derived within the network storage device 1 by the second de-multiplexer 4.
  • a section filter Within a section filter the transport packets of a MPEG 2 transport stream are examined for a certain combination of bits which is a parameter to the filter. If the combination of bits matches the parameter, data from the transport packet is used to assemble a desired section.
  • the final output of a section filter are complete sections.
  • a section is a more powerful unit of information than a transport packet, because it has a variable size, i.e. it can be larger or smaller than a transport packet, and a cyclic redundancy check (CRC) is possible.
  • Network storage device 1 storing DVB compliant partial TS on data storage 5 PAT Send original Modify PAT Replace PAT.
  • the stored PAT shall contain only associations to the desired program for recording.
  • PMT Send original Modify PMT Replace PMT.
  • the new PMT shall contain only PIDs to the desired services for recording.
  • the IEEE 1394 interface 7 within the set top box 2 only removes the Network Information Table (NIT), the Bouquet Association Table (BAT), the Time and Data Table (TDT), the Time Offset Table (TOT), the Running Status Table (RST), the Stuffing Table (ST), and the Video, Audio, and Data of non desired program(s) from the transport stream TS received from the tuner 6 to generate an IEEE 1394 compliant transport stream which can be transmited via the IEEE 1394 network 3.
  • NIT Network Information Table
  • BAT Bouquet Association Table
  • TTT Time and Data Table
  • TOT Time Offset Table
  • RST Running Status Table
  • ST Stuffing Table
  • Video, Audio, and Data of non desired program(s) from the transport stream TS received from the tuner 6 to generate an IEEE 1394 compliant transport stream which can be transmited via the IEEE 1394 network 3.
  • the first de-multiplexer 8 within the set top box 2 is not involved in the generation of the partrial transport stream PTS so that its capacity can be used for distibuting said partial transport stream or parts thereof during retrieval of the partial tansport stream PTS from the data storage 5 of the network storage device 1 via the IEEE 1394 network 3 to the respective output device(s).
  • the invention is also not limited to time shifting applications, but can be used for every kind of data storage applications within a network, preferably an IEEE 1394 network.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Television Signal Processing For Recording (AREA)
EP00115765A 2000-07-21 2000-07-21 Netzwerkspeichereinheit mit einem Demultiplexer Withdrawn EP1175086A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP00115765A EP1175086A1 (de) 2000-07-21 2000-07-21 Netzwerkspeichereinheit mit einem Demultiplexer
JP2001222022A JP2002125179A (ja) 2000-07-21 2001-07-23 ネットワークストレージ装置及びストレージ方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00115765A EP1175086A1 (de) 2000-07-21 2000-07-21 Netzwerkspeichereinheit mit einem Demultiplexer

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1447990A2 (de) * 2003-01-21 2004-08-18 Nokia Corporation Erkennungstabelle aktiver Pakete
EP1482730A1 (de) * 2002-03-05 2004-12-01 Sanyo Electric Co., Ltd. Informationsaufzeichnungseinrichtung, informationswiedergabeeinrichtung, informationsaufzeichnungsverfahren, informationswiedergabeverfahren, informationsaufzeichnungsprogramm, informationswiedergabeprogramm und informationsaufzeichnungsmedium
WO2005067300A1 (en) * 2003-12-31 2005-07-21 Koninklijke Philips Electronics N.V. A time-shifting device in a home network
EP1592232A1 (de) * 2004-02-20 2005-11-02 Vbox Communications Ltd. USB-Schnittstellenmodul für digitalen Videorundfunk

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Publication number Priority date Publication date Assignee Title
WO1994018763A1 (en) * 1993-02-11 1994-08-18 Thomson Consumer Electronics S.A. Multi-media distribution and multi-media player
EP0749244A2 (de) * 1995-06-14 1996-12-18 Matsushita Electric Industrial Co., Ltd. Rundfunkempfänger, Übertragungssteuereinheit, und Gerät zur Aufzeichnung und Wiedergabe
US5619337A (en) * 1995-01-27 1997-04-08 Matsushita Electric Corporation Of America MPEG transport encoding/decoding system for recording transport streams
EP0893913A1 (de) * 1997-07-24 1999-01-27 CANAL+ Société Anonyme Verarbeitung eines digitalen Transportstroms
EP0930781A1 (de) * 1997-08-13 1999-07-21 CANAL+ Société Anonyme Videorecordersteuerung

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Publication number Priority date Publication date Assignee Title
WO1994018763A1 (en) * 1993-02-11 1994-08-18 Thomson Consumer Electronics S.A. Multi-media distribution and multi-media player
US5619337A (en) * 1995-01-27 1997-04-08 Matsushita Electric Corporation Of America MPEG transport encoding/decoding system for recording transport streams
EP0749244A2 (de) * 1995-06-14 1996-12-18 Matsushita Electric Industrial Co., Ltd. Rundfunkempfänger, Übertragungssteuereinheit, und Gerät zur Aufzeichnung und Wiedergabe
EP0893913A1 (de) * 1997-07-24 1999-01-27 CANAL+ Société Anonyme Verarbeitung eines digitalen Transportstroms
EP0930781A1 (de) * 1997-08-13 1999-07-21 CANAL+ Société Anonyme Videorecordersteuerung

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Title
NAKAI ET AL.: "Newly Developed IRD Built-In D-VHS VCR System for DVB Broadcasts", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 44, no. 3, August 1998 (1998-08-01), pages 465 - 471, XP002149008 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1482730A1 (de) * 2002-03-05 2004-12-01 Sanyo Electric Co., Ltd. Informationsaufzeichnungseinrichtung, informationswiedergabeeinrichtung, informationsaufzeichnungsverfahren, informationswiedergabeverfahren, informationsaufzeichnungsprogramm, informationswiedergabeprogramm und informationsaufzeichnungsmedium
EP1482730A4 (de) * 2002-03-05 2011-03-16 Sanyo Electric Co Informationsaufzeichnungseinrichtung, informationswiedergabeeinrichtung, informationsaufzeichnungsverfahren, informationswiedergabeverfahren, informationsaufzeichnungsprogramm, informationswiedergabeprogramm und informationsaufzeichnungsmedium
EP1447990A2 (de) * 2003-01-21 2004-08-18 Nokia Corporation Erkennungstabelle aktiver Pakete
EP1447990A3 (de) * 2003-01-21 2004-10-06 Nokia Corporation Erkennungstabelle aktiver Pakete
WO2005067300A1 (en) * 2003-12-31 2005-07-21 Koninklijke Philips Electronics N.V. A time-shifting device in a home network
EP1592232A1 (de) * 2004-02-20 2005-11-02 Vbox Communications Ltd. USB-Schnittstellenmodul für digitalen Videorundfunk

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